Mold for typographic or type-founding apparatus.



P. W. DRUITT.

MOLD FOR TYPOGRAPHIC 0R TYPE FOUNDING APPARATUS.

APPLICATION FILED 1AN.12, 1912.

1,149.1 1 9.. Patented Aug. 3, 1915.

3 SHEETS-SHEET l.

#4 17268565 ZZUenZZr P. W. DRUITT.

MOLD FOR TYPOGRAPHIC 0R TYPE FOUNDING APPARATUS. APPLICATION FILED JAN. 12. 1912.

1,149,1 19. v Patented Aug. 3, 1915.

3 $HEETSSHEET 2.

I, l d 1 w l i i @1111; 2mg) P. W. DRUITT.

MOLD FOR TYPOGRAPHIC 0R TYPE FOUNDING APPARATUS.

APPLICATION FILED JAN. 12. 1912.

1 ,149,1 1 9. Patented Aug. 3, 1915.

3 SHEETS-SHEET 3.

PERCY WALTER DRNI TT, 0F SURREY, ENGLAND, ASSIGNOR TO EDWARD HERON ALLEN AND ARTHUR FRANK DE FONBLANQUE, BOTH OF LONDON, ENGLAND.

MOLD FOR TYPOGBAPHIC OR TYPE-FOUNDING- APPARATUS.

Specification of Letters Patent.

Patented Aug. 3, 31915.

Application filed January 12, 1912. Serial No. 670,905.

To all whom it may concern:

Be it known that I, PERCY WALTER DRUITT, a subject ofthe King of Great Britain, residing in Surrey, England, and whose post-oflice address is Baron Cottage, London Road, Mitcham, in the county of Surrey, England, have invented certain new and useful Improvements in Molds for Typographic or Type-Founding Apparatus, of which the following is a specification.

This invention'relates to type molds of casting machines for single foundry type or of type sttting and casting machines such as described in United States patent specifications Nos. 675827, 675829 and 690720, wherein a line of matrices is composed and justified and individual character types and spaces are cast therefrom and then assembled in a galley.

The objects of this invention are to insure uniformity of set thickness in. the cast type, and to insure metal tight abutment of the mold surfaces which form the foot and tang of the type andv to permit Withdrawal of the body blade and tang blade without disturbing the relation of this side blocks with. the remainder of the mold.

With these objects thebody blade and the tang blade, which are constructed in separate pieces, are, according to the present in-. vention, so correlatedthat the movement of the tang blade on the forward stroke, which determines the set thickness of the type permits the body blade to be driven, forward by a spring-urged set wedge against the matrix independently of any further. forward movement-of the tang blade. Further, in order to obviate displacement of the alining piece (which cooperates withthebody blade to hold the matrixin casting) relatively to the end surfacesof the side blocks of the mold by reason of unequal expansion of the parts ofthe mold, the alining piece is, according to the present invention, secured upon the front plate of the mold, which being in intimate contact with the Water cooled side blocks and nowhere touching the angle plate of the mold, insures an invariable distance betweenthe face ofthe alining piece and the'end'surfaces of the side blocks.

These and other features of the present invention are illustratedin the accompanying drawings in 'which.

' Figure 1 is a, front elevationofthemold with the front plate removed; Fig. 2 a plan view of the same with the top side block removed; Fig. 3 a front elevation showing the front plate of the mold and adjustable alinlng piece but no matrix is depicted; Fig.

4 a plan of the same; Fig. 5 a plan of the mold with front plate removed and showmg the nick pin; Fig. 6 a section on line 6+6 of Fig. 5; Fig. 7 an end elevation of the side blocks and nick pin; Fig. 8 a section on line 88 of Fig. 6; and Fig. 9 a perspective view of the forward part of the mole pin. Figs. 10 and 11 are horizontal sections through the mold cavity of the apparatus shown in Figs. 1 and 3, respectivelv; and Figs. 12 and 13 are vertical sections bf the same, also through the mold cavity.

Referringfirst to Figs. 1 and 2, it will be seen that the mold is constructed with the body blade c,and the tang blade '6 in separate pleces, which are so correlated that when the tang blade is driven forward on the stroke which determines the set thicknessof the type, by contact of the set. piece a of the body blade With the set notch of the matrix, 72. (Figs. 11 13) the forward movement ,of the tang blade 6 under the action .of its spring 6, releases the body blade a so that it can be driven forward independentlyagainst the matrix, this being effected in thecase ofmachines such as described in the before mentioned specifications by aset wedge c operated by a cam on the mold shaft, the tang blade following under the action ofits spring.

Normally the tang blade is arrested in the appropriate position for casting, that is with its front face flush/with that of the body blade,by reengagement with the body blade, a projecting lug b on the tang blade having movement in a slot 0;? of the body blade for this purpose, but even if the tang blade is arrestedbefore these surfaces are flush, as for example by reason of the tang blade becoming slightly distorted and defective, the independent setting of the body blade by the set wedge 0, previously. referred to but which in this case is urged forward by the spring 0, insures the constancy of the set thickness of the type which is being cast, there beingsu-flicient relative movement possible between the lug b and the sl1oul-, ders at the end of slot a to insure this.

After the type is cast, the set wedge o is withdrawn'and the tang blade is retracted positively by means of the cam driven lever (Z, pine on sleeve 6, and adjusting nuts f on the link 6 operating the tang blade, and brings the lug 6 into engagement with the rear shoulder of the slot a thereby releasing the body blade, so as to enable the matrix to be withdrawn. j

' It is to be understood that the set wedge c and lever 03 are actuated by cams upon the driving shaft of the casting machine, (6. 9., the shaft known as the mold shaft in the type setting and casting machine in connection with which this invention is more particularly described), and that the cam which actuates lever 03 is of such a character as to become inoperative during part of the revolution of the driving shaft so as to allow the tang blade I) to be moved by the spring 6 for setting the body blade a against the matrix.

The type is extruded from the mold for delivery therefrom by the cross slide m, by again advancing the tang blade so as to complete the forward stroke of the body blade and tang blade, which, for this purpose are positively driven forward the required distance by lever (Z, the tang blade reengaging the body blade so that the two move forward together with their front facesflush, thereby ejecting the type from the" mold cavity 0 into the path of the cross slide m by which it is delivered from the mold under the action of appropriate reciprocating mechanism which forms no part of the present invention and consequently is not illustrated.

Another cause of variation of set thickness resides in the liability of the alining piece 9, (Figs. 3 and 4:), between which and the set piece a of the body blade a thematrix is held in casting, being displaced relatively to the end surfaces of the side blocks it, 71, of the mold by reason of unequal expansion in the parts of the moldand in particular by reason of the expansion of the angle plate 71 upon whichthe alining piece has hitherto been carried According to the present invention, the alining piece is se cured upon the front plate 9' of the mold which is preferably formed with a transverse groove to accommodate the alining piece 9. As the front plate j is in intimate contact with the side blocks it, h and nowhere touches the angle plate, the temperature of the side blocks and of the front plate does not vary materially and thus there is no unequal expansion and no consequent variation in the distance between the face of the alining piece 9 and the end surfaces of the side blocks h, 72/ and therefore no variation on this account in the set thickness of the type. The position of the alining piece both transversely and longitudinally with respect to the front plate is preferably capable of adjustment so that the distance of the bottom edge of the alining piece relative to the type aperture and the distance of its front edge from the. end surfaces of the side blocks, can be accurately set.

The former adjustment may be effected by means of cone headed set screws 9' and clamping screws 9 The bodies of the screws 9 pass through enlarged holes in the alining piece g and screw into the front plate j. By turning screws 9 in opposite directions, while the clamping screws 9 are set so that the piece j is not clamped by these heads, the transverse position of the alining piece can be adjusted and the piece then fixed in position by operating screws 9 The adjustment of the piece 9 longitudinally with respect to the front plate mcy be effected by means of set screws 9 which abut against the rear surface of the adjusting piece and work partly in screw threaded grooves in the front plate 3' and partly in corresponding grooves in a loose clamping plate 7' which is secured by screws 7' to lock the set screws 9 after the adjustment has been effected.

'In order that the body blade a and tang blade I) of the mold may be withdrawn without disturbing the relation of the side blocks h, h with the remainder of the mold, the groove 72, in the top side block h in which the nick pin (Figs. 5 to 9) is fitted is, acaccording to the present invention, carried right through the block and the rear end of the nick pin is extended to be flush with the rear face of the side block, a keep plate hi being provided for this end of the nick pin to abut against. The plate k is detachably mounted by means'ofone or more screws or studs 72 on the rear face of the side block h ,(Fig. 5), the loosening or withdrawal of the screw or screws 72f enables the keep plate to be swung aside or removed altogether. The nick pin is formed with a shoulder is near its forwardend by cutting away part thereof, and the groove 71 in the side block terminates at its forward end in a recess Z having a shoulder Z at its forward end for the shoulder is to abut against.

' The groove ii for the nick pin in' the upper'side block, instead of being'of the same transverse section as the nick pin, is preferably formed so as to provide a certain amount of lateral clearance for the nick pin in the groove, in order that the body blade 05, one side of which is grooved to em brace the nick pin, may be enabled tofit snugly in the casting position against the cooperating surfaces of those parts of the mold which form the foot of the type.

It will be understood that in the" mold herein described and illustrated the mold cavity is formed by members which do, not difier essentially from the corresponding members of the mold described in the copending application Serial No. 625450, the two side blocks k, h forming two walls of the mold cavity and also serving to guide the body blade and the tang blade which together form a third wall, while the cross slide on forms the fourth wall of the mold cavity and the matrix itself the fifth wall.

Having thus described the nature of the said invention and the best meansl know of carrying the same into practical effect, 1' claim 1. A type mold for type casting machines such as herein referred to, comprising a tang blade and a body blade capable of relative movement, means operating to move the tang blade and body blade simultaneously, and a spring-urged set wedge adapted to drive the body blade forward against the matrix independently of any movement of the tang blade, substantially as described.

2. A type mold for type casting machines such as herein referred to, comprising a front plate, two side blocks, a body blade and an alining piece cooperating with the body blade to hold the matrix in casting, said alining piece being secured upon the front plate of the mold, substantially as described.

3. A type mold for type casting machines such as herein referred to, comprising a front plate, two side blocks, a body blade and an alining piece cooperating with the body blade to hold the matrix in casting, said alining piece being adjustably secured upon the front plate of the mold, and means for shifting the alining piece both transversely and longitudinally'with respect to the plate and for clamping the alim'ng piece upon the plate, substantially as described.

4:. A type mold for type casting machines such as herein referred to, comprising a pair of side blocks, one of said side blocks having a groove formed therein, said groove being carried through the block to the rear face thereof, a nick pin accommodated in said groove and extending rearwardly so as to be flush with the rear face of the side block, and a detachable keep plate secured to the rear face of the side block in abutment with the rear end of the nick pin, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

I PERCY WALTER DRUITT.

Witnesses:

J OSEPH MLLLARD, W. J. SKERTEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

